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ARM: 8481/2: drivers: psci: replace psci firmware calls

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Switch to use a generic interface for issuing SMC/HVC based on ARM SMC
Calling Convention. Removes now the now unused psci-call.S.

Acked-by: Will Deacon <[email protected]>
Reviewed-by: Mark Rutland <[email protected]>
Tested-by: Mark Rutland <[email protected]>
Acked-by: Lorenzo Pieralisi <[email protected]>
Tested-by: Lorenzo Pieralisi <[email protected]>
Signed-off-by: Jens Wiklander <[email protected]>
Signed-off-by: Russell King <[email protected]>
This commit is contained in:
Jens Wiklander 2016-01-04 15:46:47 +01:00 • committed by Russell King
commit e679660dbb
6 changed files with 23 additions and 64 deletions
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2
arch/arm64/kernel/Makefile
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@ -14,7 +14,7 @@ CFLAGS_REMOVE_return_address.o = -pg
arm64-obj-y := debug-monitors.o entry.o irq.o fpsimd.o \
entry-fpsimd.o process.o ptrace.o setup.o signal.o \
sys.o stacktrace.o time.o traps.o io.o vdso.o \
hyp-stub.o psci.o psci-call.o cpu_ops.o insn.o \
hyp-stub.o psci.o cpu_ops.o insn.o \
return_address.o cpuinfo.o cpu_errata.o \
cpufeature.o alternative.o cacheinfo.o \
smp.o smp_spin_table.o topology.o smccc-call.o

28
arch/arm64/kernel/psci-call.S
View file

@ -1,28 +0,0 @@
/*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* Copyright (C) 2015 ARM Limited
*
* Author: Will Deacon <will.deacon@arm.com>
*/
#include <linux/linkage.h>
/* int __invoke_psci_fn_hvc(u64 function_id, u64 arg0, u64 arg1, u64 arg2) */
ENTRY(__invoke_psci_fn_hvc)
hvc #0
ret
ENDPROC(__invoke_psci_fn_hvc)
/* int __invoke_psci_fn_smc(u64 function_id, u64 arg0, u64 arg1, u64 arg2) */
ENTRY(__invoke_psci_fn_smc)
smc #0
ret
ENDPROC(__invoke_psci_fn_smc)